A Prospective Multicenter Cohort Study About Internal Fixation Using FNS Versus MCS for Femoral Neck Fracture

This prospective multicenter cohort study is to compare the post-operative implant failure rate between the patients with femoral neck fracture (AO classification 31-B) using Femoral Neck System (FNS) versus Multiple Cancellous Screws (MCS) at 2-year follow up. The patients are divided into the FNS group and the MCS group according to the internal fixation they choose. The internal fixation failure rate (IFFR) and differences in fracture prognosis of the two groups will be compared. Obtain clinical data of FNS in the Chinese population, and verify the safety and efficacy of FNS for patients with femoral neck fracture.